Hollow needle for vaccinating timber and the like



May 11 ,1926.

CQ-SCHMITTUTZ 4 I HOLLOW NEEDLE FOR VACCiNATING TIMBER AND THE LIKE Filed June 19, 1924 thereby. On the other hand it has proved Patented May. 11, 1926..

UNITED 'STATES.

PATENT OFFICE.

c ar. SCHMITTUTZQQFYBADI KISSINGEN, BAVARIA, GERMANY.

vHOLLOW NEEDLE FOR VACGINATING AND THE LIKE.

Application filed J unc 19, 192 Serial No. 721,145.

My invention relates to an instrument for the use in treating trees, poles, timbers and serving meat and also for use in embalming corpses. Needles in use for these known treatments would however, not .work well for vaccinating timber and wood. It is the object of my invention, to provide the best shape of needle for thelatter purpose.

I have found out, that in vaccinating timber it is important to rupture as little as possible the fiber of timber so that the pole is not deteriorated in its resistance against storm or against the strain of wires carried to be essential to produce as large a cavity as possible about the end of the needle both in order to form a pocket with the largest possible area and to inject as much preserving substance as possible.

In order to further'explain this I ma'y say that by every injection a certain amount of preserving substance is stored within the timber and that impregnation takes place by the moisture attackingthe pole, dissolv-.

ing parts of the said substance and carrying it all over the body of the timber in avertical direction as well as laterally. The lateral dispersion however being less eflicient than that in the vertical sense it is important to store the preserving substance between vertical areas as large as possible thus increasing the basis of-lateral dispersion. The preserving substance has a pasty consistency and is injected whilst the needle is in its inmost position within the timber with. the effect that it penetrates into the two splits gaping below and above the needle filling them up entirely. The injection can be continued during the time the 'needle is withdrawn and can also begin with the moment the needle attacks the timber. The most important moment for the injection however is that of themost: advanced position of the needle because then the gap of the split is biggest and its extension above and below the needle the largest.

By way of example I have shown in the drawingsa needle of the conformation which appears to be best suited to my purpose.

Referring to the vaccompanying drawings which are made apart hereof and on which similar reference charactegs indicate similar parts, I i

Figure 1 is a side view of the needle with the cylinder containing the preserving substance, Figure 2, aside view taken at right angles to that of Figure l showing-the same needle with an trunk, 1

Figures 3 and t are cross-sections of the needle, the first taken at an elevation corre sponding to the height of the two exits from the interior of the needle, and the second taken at a point nearer the butt of the needle,

Figure 5, a vertical section. of a tree trunk showing the needle 1n its inmost position in the moment of n ectlon, and

Figure 6 a side View on the sametrunk showing the-splitting efi'ect caused'by the needle. I The stem 1 of the needle is in cross-section. This form is preferable because it gives the needle the necessary strength to overcome the immense resistance it meets in penetrating the wood. By properlydimensioning the longer axis of the oval sec- :a1nbos for hammering it into the.

tion'the needle can be safe-guarded against.

breakage without an objectionable amount of rupture of the fibers ofthe timber inasmuch as the needle is tobe forced into the timber with this axis parallel to the fibers. The short axis is dimensioned so that the split in the wood gaps wide enough for my purpose whileat the same time rupturing as few fibers as possible consistent with satisfactory results. The said cross-section preferably increases in size from the point of the needle toward its butt thus allowing it to attain the maximum splitting action gradually and with every possible caution but yet to a sufliciently large extent.

The channel 2 oftheneedle leads centrally of the needle shaft from the base to a point near the pointed end and is there divided into: .two oppositely directed branches ex tending at right angles to the axis of the needle so that these exits lie at the ends of the longer transverse axis of the needle. A groove is formed about the needle at the plane of the outlet openings of the branches.

- needle is forced into shown in 1g.. 3. This insures the deepest possible injection of the preserving substance. Also it ,makes this pointed end breakage and 1t trong enough to prevent the wood as the causes a quicker splitting of the same.

Above the two vexits the angle. of inclination of the needle is smaller but still large enough to cause a progressive gaping of the split when the needle-advances on its way into the tree.

Figure 6 shows the splits 4 gaping above and below the needle when in its inmost position and in the moment of injection and it also pictures how a suitable displacement of incisions causes thorough impregnation of the whole of the body of the trunk as far as the needle reaches into the same inasmuch as the pockets due to splitting of the wood intersect so that the lateral dispersion of the preserving substance injected into such pock-.

ets extends as far-as to leave practically no parts between the pockets unimpregnated. Figure 5 shows approximately the outline of such a pocket t in which the preserving substance is stored in the form of a flat cake after the needle is withdrawn.

The manipulation into the timber and for injecting the fluent material can take place in various forms. A verysimple way is indicated in the drawing. A kind of 'ambos 5 fits loosely over the threaded neck 11 of the needle and is held by hand so that it rests upon the shoulder 12. By hammering on the said ambos the needle is forced into the timber. Then the ambos is taken away and a cylinder 6 is screwed upon the threaded neck 11 said cylinder containing the preserving substance.

In this cylinder there is a piston (7 'which can be moved to and fro by a threaded rod 9 engaging with the correspondingly thread- By turning ed cover 10- of the eylinder.

for driving the needle handle8 the rod turns within the cover and also within the piston driving the latter on v and thereby presses substance through the fluentv preserving the channel in the needle The needle is then withdrawn.

can be devised be worked mechanically but portance to the It will be obvious to those art that various changes device without the invention and therefore I myself to what Other means whole process to this is of no imidea proper of my invention. skilled in the may be made in my from the spirit of do not limit the drawings and but only as inallowing the departing 00 is shown in dicated in the appended claims.

Having thus fully described my said invention, what I claim as new and desire to secure by Letters Patent, 1s:

1. A hollow needle for use in vaccinating trees, timbers and the like with preserving substances of a pasty consistency, the said needle having section which increases in size towards the butt of the needle,

branches leading outward in proximity to the pointed end of the needle, substantially as set forth.

2. A needle as in claim 1,

channel with an approximately oval cross- 7 from the point and a central the branch channels having their exits in line with the major diameter of the needle,

set forth.

3. A needle as in claim 1, the branch chansubstantially as nels having their exits in line with the major diameter of the needle,

about the needle into which said exlts groove open, substanti A hollow needle and an annular ally as set forth.

as set forth in claim 1,

with its pointed end solid said needle ta ering gradually from said broad channel below said plane,

to the plane of the out ets and more steeply substantially as set forth.

' In witness whereof I have signed this specification.

CARL SGHMITTUTZ; 

